H.264 to VC-1 and VC-1 to H.264 transcoding

Details H.264 to VC-1 and VC-1 to H.264 transcoding H.264 to VC-1 and VC-1 to H.264 transcoding

2011-03-22

2011-03-22

An, Shawn (Department: 2483)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240250, C375S240260, C375S240120, C375S240240, C375S240130, C375S240200, C382S233000, C382S235000, C382S236000, C382S238000, C382S250000, C382S246000

Reexamination Certificate

active

07912127

ABSTRACT:
A method for transcoding from an H.264 format to a VC-1 format. The method generally comprises the steps of (A) decoding an input video stream in the H.264 format to generate a picture having a plurality of macroblock pairs that used an H.264 macroblock adaptive field/frame coding; (B) determining a mode indicator for each of the macroblock pairs; and (C) coding the macroblock pairs into an output video stream in the VC-1 format using one of (i) a VC-1 field motion compensation mode coding and (ii) a VC-1 frame motion compensation mode coding as determined from the mode indicator.

REFERENCES:
patent: 5442401 (1995-08-01), Murakami et al.
patent: 6625320 (2003-09-01), Nilsson et al.
patent: 7480335 (2009-01-01), Payson
patent: 7602846 (2009-10-01), Wu et al.
patent: 2005/0232497 (2005-10-01), Yogeshwar et al.
patent: 2006/0153294 (2006-07-01), Wang et al.

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